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Division of a Polynomial by a Monomial

Divide. Write...

Question

Divide. Write the quotient and the remainder.
(a) $21 m^{2} \div 7 m$
(b) $40 a^{3} \div (- 10 a)$

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Solution

$(i)$
$7 m) ¯ ¯¯¯¯¯¯¯¯¯¯ ¯ 21 m^{2} (3 m - 21 m^{2}0$

$(i i)$
$- 10 a) ¯ ¯¯¯¯¯¯¯¯¯ ¯ 40 a^{3} (- 4 a^{2} - 40 a^{3}0$

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